Add a little badge that displays the total number of queries and time spent parsing your EE template

sv_performance.php

{if member_group == '1'}
<div id="performance-widget" style="position: fixed; right: 0; bottom: 0; padding: 7px; background: rgba(0,0,0,0.7); color: white; font-family: Verdana, sans-serif; z-index: 999; ">
    <span id="total-queries">{total_queries}</span> queries<br />
    <span id="elapsed-time">{elapsed_time}</span> seconds
</div> 
{/if}